摘要
目的 通过观察急性心肌梗死 (AMI)患者QT间期离散度 (QTd)变化 ,探讨其与临床关系。方法 应用体表同步十二导联心电图对 6 0例AMI患者进行入院后第一次心电图QTd和校正QT间期离散度 (QTcd)测定 ,并与 5 0例正常人做对照。结果 (1)AMI患者入院后第一次心电图的QTd、QTcd均明显长于对照组 (P <0 .0 1)。 (2 )死亡组QTd、QTcd均明显长于生存组 (P <0 .0 1)。 (3)室性心律失常组QTd、QTcd明显长于非心律失常组 (P <0 .0 1)。 (4 )心衰组QTd、QTcd亦明显长于非心衰组 (P <0 .0 1)。结论 AMI患者QTd、QTcd明显延长 ,提示AMI患者心肌存在明显电不稳定和复极的不同步性。
Objective To investigate the relationship between QT dispersion(QTd) and clinical features in patients with acute myocardial infarction(AMI).Methods To measure the QTd and QT corrected dispersion(QTcd) on the first 12 lead synchrony ECG in 60 patients with AMI after hospitalization and compared it with those of 50 normal subjects.Results (1)The QTd,QTcd on the first ECG in patients with AMI after hospitalization were significantly longer than those in the control group(P<0.01).(2)The QTd,QTcd in patients of death group were significantly longer than those in the survival group(P<0.01).(3)The QTd,QTcd in patients of ventricular arrhythmia group were significantly longer than those in non arrythmia group(P<0.01).(4)The QTd,QTcd in patients of heart failure group were also significantly longer than those in non heart failure group(P<0.01).Conclusion The obviously prolonged QTd,QTcd in patients with AMI indicate,there are great myocardial electrical unstability and non synchronization of repolarization in patients with AMI.It con be a simple,practical and important index for forecasting heart accidents and sudden death in AMI.
出处
《河北医药》
CAS
2001年第2期94-95,共2页
Hebei Medical Journal
